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Finding the Fourth Proportional to 44,520.42, 66,784.10 and 12,930.99

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Solution

The fourth proportional to 44,520.42, 66,784.10 and 12,930.99 is: 19,397.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,520.42 : 66,784.10 = 12,930.99 : x
  2. Step 2: Convert to fraction form
    44,520.42/66,784.10 = 12,930.99/x
  3. Step 3: Cross multiply
    44,520.42x = 66,784.10 × 12,930.99
  4. Step 4: Simplify right side
    44,520.42x = 863,584,464.60
  5. Step 5: Solve for x
    x = 863,584,464.60/44,520.42
  6. Step 6: Final answer
    x = 19,397.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.